SCI和EI收录∣中国化工学会会刊

›› 2012, Vol. 20 ›› Issue (2): 380-388.

• SELECTED PAPERS FROM THE 6TH WORLD CONGRESS ON INDUSTRIAL PROCESS TOMOGRAPHY (WCIPT6) • 上一篇    下一篇

Dynamic Visualization Approach of the Multiphase Flow Using Electrical Capacitance Tomography

王泽璞1, 陈琪2, 王雪瑶3, 李志宏1, 韩振兴1   

  1. 1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China;
    2. School of Mechanical Electric and Control Engineering, Beijing Jiaotong University, Beijing 100049, China;
    3. Key Laboratory of Advanced Energy and Power, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2011-11-18 修回日期:2012-01-16 出版日期:2012-04-28 发布日期:2012-05-02
  • 通讯作者: WANG Zepu
  • 基金资助:
    Supported by the National Natural Science Foundation of China (50736002,50806005,51006106);the Program for Changjiang Scholars and Innovative Research Team in University (IRT0952)

Dynamic Visualization Approach of the Multiphase Flow Using Electrical Capacitance Tomography

WANG Zepu1, CHEN Qi2, WANG Xueyao3, LI Zhihong1, HAN Zhenxing1   

  1. 1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China;
    2. School of Mechanical Electric and Control Engineering, Beijing Jiaotong University, Beijing 100049, China;
    3. Key Laboratory of Advanced Energy and Power, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2011-11-18 Revised:2012-01-16 Online:2012-04-28 Published:2012-05-02
  • Supported by:
    Supported by the National Natural Science Foundation of China (50736002,50806005,51006106);the Program for Changjiang Scholars and Innovative Research Team in University (IRT0952)

摘要: Identifying the flow patterns is vital for understanding the complicated physical mechanisms in multiphase flows.For this purpose,electrical capacitance tomography(ECT) technique is considered as a promising visualization method for the flow pattern identification,in which image reconstruction algorithms play an important role.In this paper,a generalized dynamic reconstruction model,which integrates ECT measurement information and physical evolution information of the objects of interest,was presented.A generalized objective functional that simultaneously considers the spatial constraints,temporal constraints and dynamic evolution information of the objects of interest was proposed.Numerical simulations and experiments were implemented to evaluate the feasibility and efficiency of the proposed algorithm.For the cases considered in this paper,the proposed algorithm can well reconstruct the flow patterns,and the quality of the reconstructed images is improved,which indicates that the proposed algorithm is competent to reconstruct the flow patterns in the visualization of multiphase flows.

关键词: electrical capacitance tomography, visualization, flow pattern identification, dynamic reconstruction algorithm

Abstract: Identifying the flow patterns is vital for understanding the complicated physical mechanisms in multiphase flows.For this purpose,electrical capacitance tomography(ECT) technique is considered as a promising visualization method for the flow pattern identification,in which image reconstruction algorithms play an important role.In this paper,a generalized dynamic reconstruction model,which integrates ECT measurement information and physical evolution information of the objects of interest,was presented.A generalized objective functional that simultaneously considers the spatial constraints,temporal constraints and dynamic evolution information of the objects of interest was proposed.Numerical simulations and experiments were implemented to evaluate the feasibility and efficiency of the proposed algorithm.For the cases considered in this paper,the proposed algorithm can well reconstruct the flow patterns,and the quality of the reconstructed images is improved,which indicates that the proposed algorithm is competent to reconstruct the flow patterns in the visualization of multiphase flows.

Key words: electrical capacitance tomography, visualization, flow pattern identification, dynamic reconstruction algorithm